Filename not showing in Winamp after WP save

Hi,

I take a mp3 and edit in WP then save it.

I then add it to the playlist of Winamp however only the Title shows when I Sort by Filename. The filename is blank.

When I check the original file, it does show in the Playlist, so it is something with WP as it only happens when I edit and save in WP.

I have tried a couple of files and all the same result.

In the file Details both Filename and Title are showing.

Thanks,